The government said Duncan will be taking on the role on an interim basis in order not to delay the construction of the new Gordie Howe International Bridge.
Duncan has been a senior strategic advisor with the law firm McMillan since 2013.
The Windsor-native was previously a Liberal member of the Ontario Legislature for 25 years, when he held posts including finance minister and deputy premier.
The appointment follows last week’s announcement by the WDBA that a shortlist had yet to be finalized for the P3.
For more information click here.